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http://empdomain.biz/ws/api/grn/grn_by_po_batch_create > input parameters: username, password, queryObject => get collection of objects
http://empdomain.biz/ws/api/grn/getGrnListing > input parameters: username, password,grnid, queryObject => get collection of objects
35. Purchase Order
http://empdomain.biz/ws/api/purchase_order/update_to_notoutstanding > input parameters: POIndexModel => Update PO to not outstanding
http://empdomain.biz/ws/api/purchase_order/createPO > input parameters: POIndexModel, POItemModel => Creates Purchase Order
http://empdomain.biz/ws/api/purchase_order/getAllPO > input parameters: conditions, offset, limit => Get list of Purchase Order Index based on input parameters
http://empdomain.biz/ws/api/purchase_order/getAllPOItem > input parameters: conditions, offset, limit => Get list of Purchase Order Item based on input parameters
http://empdomain.biz/ws/api/purchase_order/updatePOItem > input parameters: poiJson (Single Purchase Order Item Object) => Update Purchase Order Item
http://empdomain.biz/ws/api/purchase_order/getPOItemClosedBySupplierId > input parameters: supplierId => get List of Purchase Order by Supplier ID
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